Modulating Gas Burners - Lennox FLEXY II Series Installation, Operating And Maintenance

HEATING : MODULATING GAS BURNER 60 & 120kW
MODULATING GAS (UNDER PATENT INPI May 2004)
The actuator
The actuator receives an information 0-10V f rom the
regulation f or the positioning of the air shutter; then the
actuator transmits its position to the printed-board which
will order the valv e.
Check position and operation of the actuator
Disengaging for
hand driv e operation
Manual rotation
of the actuator
IOM – FLEXY II – 1007 – E
Maximum opening
Minimum opening
STARTING UP THE GAS BURNER
Purge the pipe-work near the connection on the ignition
control Valve for a f ew seconds.
- Check that the unit's Treatment Fan Blower is
running.
- Set the control to "ON" This will priorities the gas
burner.
- Increase the set temperature (room set point
temperature) to a temperature higher than the actual
room temperature.
The start of the gas burner must be done at high heat
injection.
Actuator screw
Bearing surf ace of
the actuator's screw
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